21AX681

View detailed technical data, stock status, and sourcing information for: 21AX681
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-695-7273

Item Name Code

01859

Assigment Date

01/01/1963 (63 years ago)

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.

0.605 inches minimum and 0.645 inches maximum nut height, 3b thread class, 2.175 inches minimum and 2.250 inches maximum width across flats, slotted, hexagon nut style, right-hand thread direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3b
Thread Direction: right-hand
Nut Style: slotted, hexagon
Nut Height: 0.605 inches minimum and 0.645 inches maximum
Width Across Flats: 2.175 inches minimum and 2.250 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 12
Nominal Thread Size: 1.250 inches
Bearing Surface Type: washer faced
Material: steel comp 1541 overall
Material Document And Classification: astm a576 assn std 1st material response or astm a576 assn std 2nd material response or qq-s-634-canceled fed spec 3rd material response or astm a108 assn std 4th material response or qq-s-634-canceled fed spec 5th material response overall

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
21AX681	Nut,plain,slotted,hexagon
8333050	Nut,plain,slotted,hexagon

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-00-695-7273?

The FSCG of the NSN 5310-00-695-7273 is 5310

Does the NSN 5310-00-695-7273 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-695-7273 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5310-00-695-7273 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-695-7273 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5310-00-695-7273 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963